Antibiotics have transformed modern medicine, making infections treatable and procedures such as surgery, chemotherapy, and intensive care safer. But when microbes become resistant to the medicines designed to kill them, even a common infection can become much harder to treat. Nurses are closer to this problem and its solutions than many people realize.
Key Takeaways
Antimicrobial resistance, or AMR, happens when microorganisms change in ways that allow them to survive medicines that previously worked against them.
Antibiotic resistance does not mean that a patient's body has become resistant to antibiotics. The microorganisms are becoming resistant.
Unnecessary or inappropriate antimicrobial use can accelerate resistance.
Preventing infections is also part of fighting AMR because fewer infections mean fewer antibiotics are needed.
Nurses contribute to antimicrobial stewardship through infection prevention, specimen collection, medication administration, patient monitoring, education, and communication with the healthcare team.
The goal of antimicrobial stewardship is not to avoid antibiotics when they are needed. It is to use the right antimicrobial, for the right patient, at the right dose, route, and duration.
Imagine being admitted to hospital with a bacterial infection.
The doctor prescribes an antibiotic.
But after several days, you are not improving.
The laboratory discovers that the bacteria causing the infection are resistant to the antibiotic being used.
Another antibiotic is started.
Then perhaps another.
Treatment becomes more complicated.
Hospitalization becomes longer.
Options become more limited.
This is one way antimicrobial resistance, or AMR, can affect an individual patient.
The World Health Organization describes AMR as a situation in which bacteria, viruses, fungi, and parasites no longer respond to antimicrobial medicines. When this happens, infections become more difficult — and sometimes impossible — to treat.
AMR is often discussed as a distant global health problem.
But in reality, many of the decisions that influence it happen at the bedside every day.
And nurses are involved in many of those decisions.
First, Your Body Does Not Become “Resistant” to Antibiotics
This is one of the most common misunderstandings about antibiotic resistance.
A person does not become resistant to an antibiotic.
The microorganisms do.
Suppose bacteria are exposed to an antibiotic.
Most susceptible bacteria may be killed.
However, some bacteria may have characteristics that allow them to survive.
Those surviving bacteria can continue multiplying and may spread their resistance characteristics.
Over time, infections caused by resistant organisms become more difficult to treat with the medicines that previously worked.
Antibiotics are especially important in this discussion because they are widely used to treat bacterial infections.
But AMR is broader than antibiotic resistance.
It can also involve resistance to:
antiviral medicines,
antifungal medicines, and
antiparasitic medicines.
This is why the term antimicrobial resistance is used.
Why Does Resistance Matter So Much?
Modern healthcare depends heavily on effective antimicrobial medicines.
Think about what happens after major surgery.
A patient undergoing chemotherapy.
Someone receiving an organ transplant.
A patient with severe burns.
Someone in an intensive care unit with multiple invasive devices.
These patients may be especially vulnerable to infection.
If the microorganisms causing those infections are resistant to several treatments, managing them becomes much more difficult.
WHO warns that AMR can increase severe illness and death, prolong hospitalization, increase the need for intensive care and additional testing, and make routine medical procedures riskier.
That means protecting antimicrobial effectiveness is not simply about treating today's infection.
It is also about preserving our ability to safely provide healthcare in the future.
Does Using Antibiotics Cause Resistance?
Antibiotic use creates selective pressure that can contribute to the development and spread of resistance.
This does not mean antibiotics are bad.
Antibiotics save lives.
When someone has a serious bacterial infection, delaying appropriate treatment can be dangerous.
The problem occurs when antibiotics are used unnecessarily, incorrectly, or for longer than clinically needed.
Examples may include:
using antibiotics for viral infections that will not respond to them,
taking antibiotics without appropriate medical evaluation,
using an unnecessarily broad-spectrum antibiotic when a narrower option would work,
continuing therapy longer than needed,
using the wrong dose or route, or
failing to reassess treatment when microbiology results become available.
The goal is therefore not:
“Use fewer antibiotics at all costs.”
The goal is:
“Use antibiotics carefully so that patients who genuinely need them receive effective treatment.”
That idea is called antimicrobial stewardship.
What Is Antimicrobial Stewardship?
The Centers for Disease Control and Prevention defines antibiotic stewardship as efforts to improve how antibiotics are prescribed and used.
Good stewardship aims to improve patient outcomes while reducing avoidable harms and slowing the development of resistance.
In practice, stewardship asks questions such as:
Does this patient actually have a bacterial infection?
Are diagnostic tests needed?
Which microorganism is most likely responsible?
What is the best antimicrobial for this patient?
Is the dose appropriate?
Does kidney or liver function affect treatment?
Can therapy be narrowed when culture results return?
Can intravenous treatment be changed to oral therapy?
How long should treatment continue?
Traditionally, antimicrobial stewardship programs have often been associated primarily with physicians, infectious-disease specialists, microbiologists, and pharmacists.
Those professionals remain central.
But that picture is incomplete.
Nurses are also involved at nearly every stage of antimicrobial treatment.
Before the First Antibiotic Dose, the Nurse May Already Be Influencing Treatment
Consider what happens when a hospitalized patient develops a suspected bacterial infection.
A clinician may order:
blood cultures,
a urine culture,
a sputum specimen,
a wound culture, or
another microbiological test.
Collecting an appropriate specimen can help identify the microorganism causing the infection and determine which antimicrobial medicines it is susceptible to.
But the quality of that result depends partly on how the specimen is collected.
A contaminated specimen can produce misleading information.
An inappropriate specimen may produce little useful information.
A specimen taken after antimicrobial treatment has already begun may sometimes be less likely to identify the organism.
Nurses therefore contribute to diagnostic stewardship by helping ensure that the correct specimen is collected from the correct patient using appropriate technique and at the appropriate time.
In June 2026, WHO released a practical manual emphasizing exactly this idea: effective diagnostic stewardship means using the right test for the right patient, collecting the sample correctly, and acting appropriately on the result.
For cultures that have been ordered, nurses may help obtain specimens before antimicrobial therapy begins when clinically appropriate and when doing so does not delay urgent treatment.
That final point matters.
A critically ill patient should not have necessary antimicrobial treatment dangerously delayed simply because someone is waiting to obtain the perfect specimen.
Good stewardship must always remain connected to patient safety.
A Poor Specimen Can Lead to the Wrong Story
Imagine a blood culture becomes contaminated during collection.
The laboratory grows bacteria.
The result may initially appear to suggest that the patient has a bloodstream infection.
That can potentially lead to:
additional blood tests,
repeat cultures,
unnecessary antimicrobial exposure,
prolonged hospitalization, or
treatment with broader-spectrum medicines.
Correct collection technique is therefore not a minor technical task.
It can affect the entire treatment pathway.
The same principle applies to urine cultures.
Bacteria found in urine do not always mean that a symptomatic urinary tract infection is present.
Indiscriminate testing can result in findings that may encourage unnecessary treatment.
That is why the question is not simply:
“Can we collect a specimen?”
It is also:
“Will this specimen help answer a clinically meaningful question?”
Medication Administration Is Also Stewardship
Once an antimicrobial has been prescribed, nurses are often the healthcare professionals who actually administer it.
That places nursing directly inside the stewardship pathway.
Before giving the medication, nurses may review:
the patient's identity,
medication allergies,
the drug prescribed,
the dose,
the route,
administration time,
compatibility with other intravenous medications, and
relevant clinical information.
Nurses can also notice when something does not make sense.
For example:
The antibiotic order has no clear indication.
The patient reports a serious previous reaction that has not been documented.
A dose has not been reviewed after a major change in kidney function.
The patient can now swallow medications but remains on prolonged intravenous therapy.
Microbiology results have returned, but broad-spectrum therapy continues unchanged.
The planned duration is unclear.
Nurses may not independently make every prescribing decision, but they can raise the question.
That matters.
CDC stewardship guidance specifically recognizes that nurses can contribute by reviewing antimicrobial medications and prompting discussion about treatment indication and duration.
Sometimes stewardship begins with a very simple question:
“What infection are we treating with this antibiotic?”
The Culture Result Comes Back — What Happens Next?
Imagine a patient begins treatment with a broad-spectrum antibiotic because they are seriously ill and the responsible bacterium is not yet known.
At that moment, broad coverage may be appropriate.
Two days later, laboratory results identify the microorganism and show that it is susceptible to a narrower-spectrum antibiotic.
This creates an opportunity to de-escalate treatment.
Using the broader antibiotic indefinitely may no longer provide additional benefit.
A narrower option may reduce unnecessary antimicrobial exposure.
Nurses may be among the first people to notice that a microbiology result has returned.
They can communicate the result, ask whether therapy has been reviewed, and continue monitoring the patient's clinical response.
Stewardship therefore is not a decision made once when the antibiotic is prescribed.
It is an ongoing process.
Nurses See What Happens After the Antibiotic Is Given
A prescription tells you what the clinician wants to happen.
Bedside observation tells you what is actually happening.
After antimicrobial treatment begins, nurses may be the first to detect:
allergic reactions,
rash,
gastrointestinal symptoms,
changes in blood pressure,
worsening renal function,
altered mental status,
intravenous-site problems,
diarrhea,
changes in temperature,
changes in oxygen requirements, or
failure of the patient's condition to improve.
These observations can influence whether therapy needs to be reassessed.
For example, persistent fever despite treatment may suggest that:
the antimicrobial is ineffective,
the organism is resistant,
the diagnosis is incorrect,
the source of infection has not been controlled, or
another complication has developed.
Again, a monitor or laboratory result alone cannot answer those questions.
Clinical observation remains essential.
Preventing Infection May Be One of the Most Powerful Forms of Stewardship
There is an even earlier way nurses influence antimicrobial resistance.
Prevent the infection from happening in the first place.
Every infection prevented is one less infection that may require antimicrobial treatment.
This connects antimicrobial stewardship directly with infection prevention and control, or IPC.
Nursing practice contributes through measures such as:
appropriate hand hygiene,
aseptic technique,
appropriate use of personal protective equipment,
safe wound care,
catheter care,
central-line care,
respiratory hygiene,
environmental infection-control practices,
isolation precautions when indicated, and
early removal of unnecessary invasive devices.
Consider a urinary catheter.
The longer an unnecessary catheter remains in place, the greater the opportunity for complications including catheter-associated urinary tract infection.
If a nurse notices that the catheter no longer has a clear indication and prompts its removal according to protocol, that action may prevent an infection.
No infection.
No culture.
No antibiotic.
No antimicrobial exposure.
That is stewardship too.
WHO's new 2026 nursing and midwifery curriculum assessment tool specifically links antimicrobial resistance with infection prevention and control, emphasizing that weak IPC contributes to healthcare-associated infections, preventable illness, mortality, and unnecessary healthcare costs.
Why Did WHO Create an AMR Tool Specifically for Nursing Education?
This development is especially important for nursing.
On May 11, 2026, WHO published the Antimicrobial Resistance and Infection Prevention and Control Curriculum Assessment Tool for Nursing and Midwifery Education.
The purpose is to help institutions examine whether pre-service nursing and midwifery programs adequately teach the knowledge and competencies needed to address AMR and infection prevention.
That tells us something important.
AMR education is no longer something nurses should encounter only after entering an infectious-disease unit.
It is increasingly being treated as a core professional competency.
A recent nursing review published in late 2025 similarly described nurses as having a pivotal role in antimicrobial stewardship while identifying education, system barriers, and professional culture as areas that still limit nursing involvement.
The issue is therefore not whether nurses have a role.
They already do.
The challenge is making that role more visible, structured, and supported.
Patient Education Can Prevent Misuse After Discharge
Stewardship does not end when a patient leaves the hospital.
Patients may go home with an antimicrobial prescription.
This is where nursing education can address several common misconceptions.
“Antibiotics work for every infection.”
They do not.
Antibiotics treat bacterial infections.
They do not treat viral illnesses such as many common colds and other viral respiratory infections.
“A stronger antibiotic is always better.”
Not necessarily.
The best treatment is the one appropriately matched to the infection and the patient.
A broad-spectrum antibiotic is not automatically better than a narrow-spectrum option.
“I should save leftover antibiotics in case I get sick again.”
Leftover prescription antibiotics should not be reused for a future illness without appropriate medical advice.
The future illness may have a completely different cause.
“If I feel better, I can decide for myself when to stop.”
Patients should follow the treatment plan provided by their healthcare professional rather than independently changing the dose or duration.
Importantly, modern stewardship also means avoiding the outdated message that every antibiotic course must always be made as long as possible.
Treatment duration depends on the infection and current evidence.
The right message is simpler:
Take the medication exactly as prescribed, and ask your healthcare professional if you are unsure about the duration.
Nurses Can Also Challenge the “Just in Case” Mindset
Patients are not the only people who may feel reassured by antibiotics.
In healthcare, there can also be a temptation to continue therapy “just in case.”
But every medication has consequences.
Antibiotic exposure can cause:
allergic reactions,
gastrointestinal effects,
medication interactions,
organ toxicity with some agents,
disruption of normal microbial flora, and
selection pressure that contributes to resistance.
Using an antimicrobial without a clear indication is therefore not neutral.
The CDC emphasizes that improving antibiotic prescribing is both an AMR strategy and a patient-safety strategy.
This reframes stewardship.
It is not about protecting antibiotics instead of protecting patients.
Protecting patients is the reason stewardship exists.
Stewardship Is a Team Sport
No single profession can solve antimicrobial resistance alone.
Physicians may diagnose and prescribe.
Pharmacists may review antimicrobial selection, dose, interactions, and pharmacology.
Microbiology laboratories identify organisms and susceptibility patterns.
Infection-prevention teams track transmission and healthcare-associated infections.
Public-health professionals monitor resistance patterns.
And nurses connect many of these pieces at the bedside.
A nurse may be the person who:
collects the specimen,
administers the antibiotic,
notices the adverse reaction,
reviews the medication list,
observes the clinical response,
identifies that a catheter is no longer needed,
teaches the patient,
sees the culture result,
and communicates the change to the wider team.
That combination creates a unique stewardship position.
An integrative review of nursing involvement in antimicrobial stewardship found that nurses contribute through information flow, patient communication, workflow, clinical influence, leadership, and collaboration — but also noted that their contribution has historically been insufficiently recognized.
What Could Antimicrobial Stewardship Look Like During One Nursing Shift?
It may not involve attending a special AMR meeting.
It may look like this:
07:30
A nurse reviews a patient receiving intravenous antibiotics and notices that today's creatinine has increased.
08:00
The nurse communicates the renal-function change during clinical review.
09:15
A urine culture result becomes available.
09:30
The nurse confirms that the team has seen the result and asks whether antimicrobial therapy needs to be reviewed.
11:00
During catheter care, the nurse identifies that a urinary catheter may no longer be required and raises removal according to protocol.
13:00
The patient asks whether they can keep spare antibiotics after discharge. The nurse explains why antimicrobials should only be used as directed.
15:30
The patient develops new diarrhea. The nurse assesses the patient and reports the change.
None of these actions alone solves antimicrobial resistance.
Together, they represent antimicrobial stewardship embedded in daily nursing practice.
Diagnostic Stewardship May Become Even More Important
AMR is also changing how healthcare professionals think about diagnostic testing.
WHO's Western Pacific Region emphasized this in June 2026 with its new clinical diagnostic stewardship manual.
The principle is straightforward:
right test, right patient, right time, right specimen, right interpretation, right action.
Better diagnostics can help answer questions such as:
Is this really a bacterial infection?
Which organism is responsible?
Which antimicrobial will work?
Can broad-spectrum therapy be narrowed?
Does this patient need antimicrobial therapy at all?
This matters especially in hospitals where clinicians must sometimes begin empirical treatment before the organism is known.
The faster reliable diagnostic information becomes available, the sooner therapy can potentially become more targeted.
Again, nurses are involved because diagnostics do not begin in the laboratory.
They often begin at the bedside.
What Happens if We Do Nothing?
The most frightening part of antimicrobial resistance is not that antibiotics suddenly disappear.
It is that they may become progressively less reliable against particular infections.
Treatments that once worked easily may require:
more expensive medications,
intravenous rather than oral therapy,
longer hospital admissions,
additional monitoring,
more toxic alternatives, or
combinations of drugs.
In some situations, treatment options may become extremely limited.
AMR therefore threatens more than infectious-disease care.
It threatens many parts of modern medicine that depend on our ability to control infection.
That is why preventing resistance cannot belong only to infectious-disease specialists.
It has to become part of everyday healthcare.
The Bottom Line
Antimicrobial resistance can sound like a problem happening somewhere far away in a laboratory.
But the fight against AMR often happens beside a hospital bed.
It happens when a specimen is collected correctly.
When an unnecessary catheter is removed.
When hand hygiene prevents transmission.
When a nurse asks why an antibiotic is still being given.
When culture results are communicated.
When adverse effects are recognized.
When patients understand how to use their medicines safely.
When infection is prevented before antibiotics are ever needed.
The publication of WHO's nursing-focused AMR and IPC education tool in 2026 reinforces an important message:
nurses are not observers in antimicrobial stewardship. They are participants.
The future of antibiotics will depend on discovering new treatments.
But it will also depend on how carefully we use the treatments we already have.
And at the bedside, that responsibility belongs to the whole healthcare team.
Including nurses.
References
World Health Organization. (2026). Antimicrobial Resistance and Infection Prevention and Control Curriculum Assessment Tool for Nursing and Midwifery Education.
World Health Organization Regional Office for the Western Pacific. (2026). Strengthening Clinical Diagnostic Stewardship in the Western Pacific Region: A Practical Manual.
World Health Organization. Antimicrobial Resistance.
Centers for Disease Control and Prevention. (2025). Core Elements of Hospital Antibiotic Stewardship Programs.
Centers for Disease Control and Prevention. (2026). Antibiotic Use and Stewardship in the United States, 2025 Update: Progress and Opportunities.
Bleakley, G., & Cole, M. (2025). The Nurse's Pivotal Role in Antimicrobial Stewardship: Addressing the Global Challenge of Antimicrobial Resistance. British Journal of Nursing, 34(22), 1104–1109.
Gotterson, F., Buising, K., & Manias, E. (2021). Nurse Role and Contribution to Antimicrobial Stewardship: An Integrative Review. International Journal of Nursing Studies, 117, 103787.
Tidak ada komentar:
Posting Komentar